Re: A patch for the file kernel/fork.c

[Valdis . Kletnieks]

On Wed, 04 May 2005 15:26:44 -0300, =?ISO-8859-1?Q?Andr=E9_Pereira_de_Almeida?= said:

> In a preemptible kernel with the serport module and a serial port try to 
> run the following program:

> and kill it.
> In my case it will hang the computer. I think this is a problem with the 
> serport module. With this patch, the serial mouse stop working, but the 
> computer don't hang.

The fact that the mouse stops working is indicative that this patch doesn't
actually fix the problem, it's just pushing it around in the kernel - sooner
or later something *else* is going to go pear-shaped on the null *mm.  The right
fix is to figure out why mm is bogus and fix that issue.

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